The 4th Reconnaissance Battalion is a reserve reconnaissance battalion in the United States Marine Corps. It falls under the 4th Marine Division and Marine Forces Reserve. Organization The battalion has broken ground in Marseilles, Illinois for a new Reserve Training Center which will be ready by 2010. Chronology Between 1943 and 1945 during World War II the unit was designated Company D (Scout), 4th Tank Battalion of 4th Marine Division. The unit was officially constituted in San Antonio, TX on 28 August 1948, as Company "C" of 20th Infantry Battalion. Since that time San Antonio area Marines have served variously as the 7th Rifle Company, 14th Infantry Battalion. The 4th Reconnaissance Battalion designated on 1 July 1962. On 27 November 1990 the 4th Reconnaissance Battalion activated Company "D" in Albuquerque, NM, in support of Operation Desert Shield. In December 1990, Company "D" deployed to Saudi Arabia and eventually participated in the Operation Desert Storm. Company "B", in Billings, MT was activated on 22 February 1991 and deployed to MCB Camp Pendleton, CA The "San Antonio" companies of the 4th Reconnaissance Battalion were activated on 11 March 1991 and deployed to MCB Camp Pendleton, CA and MCB Camp Lejeune, NC. History World War II The unit fought in the Battle of Kwajalein, Battle of Saipan, Battle of Tinian and the Battle of Iwo Jima. Eniwetok, February–March 1944 The Planning for the seizure of Eniwetok began when the fighting was still taking place on Kwajalein. The D-Day for Eniwetok was scheduled for 17 February 1944. Eniwetok is made up of forty islets or more and was given the operation codename, DOWNSIDE. The preliminary pre-D-Day amphibious reconnaissance was performed by both Captain Edward Katzenbach's designated 4th Marine Division's Company D (Scout), 4th Tank Battalion, and Captain James Jones's Amphibious Reconnaissance Company of the V Amphibious Corps. The landing plan encompassed four phases, on D-Day, three islets in the north of the atoll were to be seized. Two were to be used for artillery bases, Aistu and Rujioru—codenamed CAMELIA and CANNA. Bogen Island, or ZINNIA, lies north of the islet of Engebi (FRAGILE). ZINNIA was tasked to be seized by Katzenbach's 4th Division Scouts while Jones's company was ordered to recon and seize CAMELIA and CANNA. Katzenbach and his scouts fought the heavy surf and fierce 25-knot winds, which instead forced them to land on an island next to ZINNIA. By 0327 on D+1,